/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ${USER}
 * Date: ${YEAR}-${MONTH}-${DAY}
 * Time: ${TIME}
 */
public class Main {
    public static void main(String[] args) {
        ListNode listNode = new ListNode(1);
        listNode.next = new ListNode(2);
        listNode.next.next = new ListNode(3);
//        listNode.next.next.next = new ListNode(4);
//        listNode.next.next.next.next = new ListNode(5);
        Solution solution = new Solution();
        solution.reverseKGroup(listNode, 2);
    }
}